: high attenuation extra-axial; Biconvex/lens-shape; Usually does not cross suture lines

Located at point of impact (coup site) (coup describes a lesion at the side of impact; contra-coup describes a lesion on the opposite side of the brain from the brain sliding into the opposite side of the skull)

Treatment

: Surgical Evacuation

usually emergent, large exposure, necessary to identify and prevent further bleeding from the MMA, tack up dura